Apparatus for vaporizing a hydrocarbon mixture



Nov. 2,1526. 1,605,382

G. WIRRER APPARATUS FOR VAPORIZING A HYDROCARBON MIXTURE I Filed Jan. 26, 192

E v I INVENTOR 'IZ; J W

ATT NEYS temperature into an internal combustion mo- GOTTFRIED WIRRER, OF'PLAINFIELD, NEW JERSEY, ASSIGNOR TO INTERNATIONAL MOTOR COMPANY, NEW YORK, N. Y., A CORPORATION OF DELAWARE.

APPARATUS FOR VAPORIZING A HYDROGARBON MIXTURE.

Application filed January as, 1924. Serial No. 688,691.

This invention relates to apparatus for the practice of the method of vaporizing fuel described and claimed broadly in the copending application filed by the present ap plicant on April 21, 1922, Serial No. 555,845 in' accordance with which it is proposed to separate out from the explosive mixture the.

heavy ends of liquid fuel, subject such liquid fuel to a vaporizing heat and re-introduce such vaporized fuel back into the mixture for introduction at a predetermined tor. The apparatus includes a construction described in the co-pending application filed by the present applicant on June 29,1923, Serial No. 648,470 wherein the inlet riser is broken and the open ends of the broken section are so formed and disposed within the separating chamberas to cause the mixtureto take such a course as will best insure the collection of the unevaporated ends without impairing seriously the flow of the mixture.

The apparatus also includes a construction described in the co-pending application filed by the present applicant on July 27, 1923, Serial No. 654,099 wherein the evaporating chamber, instead of being separate and remote from the separating chamber, so that the separating chamber is not subjected to the heat of the exhaust gases, is coincident therewith and the exhaust gases heat the gaseous mixture as well as the unevaporated fuel collected in the separating chamber by being conducted in heat interchanging relationship with the walls of the separating chamber by more or less separated passages through which the flow of the gases in certain of the passages is controlled to control the heating of the mixture.- While the prior constructions are effective in withdrawing the unevaporated portions of the fuel to enable a mixtureof a constant temperature and also to permit a variation in the tem perature and density of the mixture according to the working conditions of the motor it is sometimes advantageous to effect great vaporization of the fuel ends immediately upon their projection at high velocity into the vaporizing chamber. The present improvements relate particularly to the disposition of the passages for the exhaust gases whereby a hot spot is provided in the chamber wall against which the gases are projected upon their entrance into the evaporating chamber and from whence they are dis- The improvements will be described with greater particularity hereinafter in connectlon with the embodiment illustrated in the accompanying drawings, wherein:

Figure 1 is a view in elevation of the inlet riser combined separator and evaporating chamber and exhaust pipe showing the relation of parts.

Figure 2 is a view in vertical section of the combined separator and evaporating chamber taken on the planes indicated by the broken line 22 in Figure 1 and look ing in the direction of the arrows. I

In accordance with the improvedmethod in said co-pending application Serial No. 555,845 the mixture afterbeing formed in the usual manner is passed to the inlet manifold and devices are provided for separating out the unevaporated heavyliquid fuel ends. The apparatus used for separating the heavy ends from the'mixture is similar in principle and design to that disclosed in the co-pending application Serial No. 6545099 but the passages for the exhaust gases are so disposed as to provide a highly heated wall against which the fuel is projected from the carburetor whereby great vaporization of the unevaporated fuel ends is immediately obtained. Metering devices ofany suitable form are conventionally indicated at a, the inlet manifold at b, the exhaust pipe at 0 and the combined separator and vaporizer chamberat (Z. The mixture formed by the metering device a rises through the pipe section 6 which terminates within the chamber d. Adjacent the riser section 6 but with its lower end disposed generally below the level of the upper end of said section 6 is a second riser section 7 which communicates with the inlet manifold Z). The general relationship between the-sections ev and 7" in the pre ferred embodiment is shown in Figure 2 where it appears that the upper edge of section 6 is inclined as indicated at e and is so presented to the side wall of the chamber (Z as to direct the mixture toward the side wall and disperse it over a large superficial area. Similarly the lower edge of the other section 7 is inclined as indicated at f so that the gaseous mixture within the chamber d beforeflowing into the section f must circulate loo throughout the chamber cl, JT his relation told I). By having the ehairiberd-"df g'reater volumetric capacity than the pipe 6 the velocity of the gas passing through theichamber is 'decrea'sedfthereby insuringtheseparation ofthe ma'iiin'duin quantity ofune vfap orated fuel ends. relationship between the risers cjancl "and the'iiiethodofseparating the liquid uel-parti cle'sffrom the 'hiixture is substantially similar 'tot'herelati onship and method disclosedin coendIn g application Seria1Nof654- ,O99. However, it will be observed upon inspection ofFigiifeQtliat the inc'linedope'n df the riserjfe' i turtied directly away from the riser f thereby-providing a greater path for the fuel particles in their passage throughout the fcli'aifib'er and affording greater opportunities for'tlie liquid particles to collect upon'the walls or the chamber. As intheilattera-plicationgit is desirable to provide it'dr'the mission" of the mixture to 'theiiianifold'carryiiig apredetern'iined amount of "fuel particle and to this 'endthe temperature of'the chamber in which the separation vaporization are carried out iscontrolled. The bottom *wen CZ" or the chamber is inclined "as indicated in Figure'2'a1nd is formedat "the"'lovt ermost'pointwith a' depress'i'o'nfd in which the liquid particles "fu'e'l draining down *the inclined bottom will collect; Inorder tosupply heat to the chai'nbertl the chamber "is preferably cast integral with section of the eighaust'pijpe a The passage t'o'r'thee'b haust gases throughfthis section "is Tsubdiyid e'das at 'o, c ano l '0 Figures. The passage c is disposed adja ent the depressioh d for the fl'p'u'rpo'se of furnishing a constant supply of 'h'eatjto the liquid fu'el contained therein to a oriz it. "A supplementar heating device, such-as "an electric coil '7t, may be di'sposedin the 'depre 's 'sio ilf 'c'l Wh'ere byliq'u'id fuel particles co'llectedtherein ma be "quickly vaporized to provide the inotively little influence on the temperature therein. This passage may be considered as a bypass for the heated gases around the chamber, .Bymeans of.t11e.,v vethe flow of the e xhaust; gases throughthe-passages c and c and consequently the temperature of the "chamber tZ may becontrolled as is more clearly described and illustrated in the co- -'-pe11cling applicationSerial No. 654,099. A

provide "a higher heated surface against which tlie'fiiel entering theohainber is projectedto obtain an initial great vaporization of the ii'rieviaporated ends thereof the exhaust "passage F0 is broadened to overlie "a material person or the upper must the chamber Z indicatedatc The heated exhaust gases fiowingjthrough this portion of the pa ssa-ge will cause the wallet thexc haniher to be 'highlyflieated and will resultfin a not pots are pdint 22 Where thegases projected 'froin'flthe riseri e iiiipinge-.- These gases aref'proj-ected at relatively high velocity with a 'i esult that great vaporization of the fuel endsisfat once obtained. Thencethe'gases are dispersed over the side i wa lls which, lbecause of the structure 20f the chamber, are less highly heated. Thus thealir incliid 'edin the miirtlireis not oyer-he'a-ted an'd a high" density of the mixture'r'esult's. The remain ing 'en'dsfdrain into the trough d where they lie until evaporated by thehe'at from the'pas sage 0" or the coilh. "It willbe understood: thatth'e'size and disposition of theipassageec is such that the trough is not, under normal circumstances, too'higlily heated as it not desiredtosubjectthe gases and air to too high "a temperature. y Y The sob 5e of theinve'ntionwillbe apparent frqm "the appended claims which are intendedtocover all equivalent forms of'the devices herein shown.

What I'claim is: l y I '1. "In an 'apparatfus for vaporizinghydro carbon fuel, the combinationwith an'iiil'et manifold, a metering device for hydrocarbon fuel and a collectin chambentf a riser in the chamber communicating with the metering device, alrise' r in'dependentbt the first named risercommunicating with the inlet manifold, e passage for exhaust gases formed in theb ttom wanot the;cha1nber,'a second passage formed inandadjacent to a wall of the chamber remote from saidfirst mentioned "passage and having a portion thereof overlying the upper wall of the tppneatipngseriai No. 654l',O99 but in order to;

chamber, a third passage substantially re mote from a Wall of said chamber and means to control the flow of exhaust gases in the second and third passage, the riser from the metering device directing the gaseous mixture against the portion of the upper Wall of the chamber which the passage for exhaust gases overlies.

2. The combination With an inlet manifold, a metering device for hydrocarbon fuel and a vaporizing chamber having inlet and outlet risers ancl an inclined bottom Wall, of a passage for exhaust gases formed in said Wall proximate the extreme inclined portion thereof, a second passage formed in and adjacent to the Wall of the chamber remote from said first mentioned passage and having a portion thereof overlying the top oi" the chamber to form a hot spot, a third passage cast integral With said chamber but substantially remote from a Wall thereof, a valve to control the flow of exhaust gases in the second and third passages and a passage for exhaust gases from the second passage into the chamber, said inlet riser directing gaseous mixture against the hot spot.

This specification signed this 23d day of January, A. D. 1924.

GOTTFRIED WIRRER. 

